Project: Vcr 1.11.3

Publisher: VCR

Usage with RSpec

VCR provides a macro that makes it easy to use a VCR cassette for an RSpec
example group. To use it, simply add config.extend VCR::RSpec::Macros
to your RSpec configuration block.

In any example group, add a use_vcr_cassette declaration to use a cassette
for that example group. You can use this in a few different ways:

use_vcr_cassette
- Infers a cassette name from the example group description (and parent example group descriptions).
- Uses the default_cassette_options you have configured.
use_vcr_cassette "Cassette Name"
- Uses the given cassette name.
- Uses the default_cassette_options you have configured.
use_vcr_cassette :cassette => :options
- Infers a cassette name from the example group description (and parent example group descriptions).
- Uses the provided cassette options (merged with the defaults).
use_vcr_cassette "Cassette Name", :cassette => :options
- Uses the given cassette name.
- Uses the provided cassette options (merged with the defaults).

Background

Given

the following files do not exist:

spec/cassettes/VCR-RSpec_integration/without_an_explicit_cassette_name.yml

spec/cassettes/net_http_example.yml

And

a file named "spec/sinatra_app.rb" with:

require 'vcr_cucumber_helpers'

start_sinatra_app(:port => 7777) do
  get('/') { "Hello" }
end

And

a file named "spec/vcr_example_spec.rb" with:

require 'spec_helper'

describe "VCR-RSpec integration" do
  def make_http_request
    Net::HTTP.get_response('localhost', '/', 7777).body
  end

  context "without an explicit cassette name" do
    use_vcr_cassette

    it 'records an http request' do
      make_http_request.should == 'Hello'
    end
  end

  context "with an explicit cassette name" do
    use_vcr_cassette "net_http_example"

    it 'records an http request' do
      make_http_request.should == 'Hello'
    end
  end
end

Scenarios

Use `use_vcr_cassette` macro with RSpec 2

Given

a file named "spec/spec_helper.rb" with:

require 'sinatra_app'
require 'vcr'

VCR.config do |c|
  c.cassette_library_dir     = 'spec/cassettes'
  c.stub_with                :fakeweb
end

RSpec.configure do |c|
  c.extend VCR::RSpec::Macros
end

When

I run rspec spec/vcr_example_spec.rb

Then

the output should contain "2 examples, 0 failures"

And

the file "spec/cassettes/VCR-RSpec_integration/without_an_explicit_cassette_name.yml" should contain "body: Hello"

And

the file "spec/cassettes/net_http_example.yml" should contain "body: Hello"

Use `use_vcr_cassette` macro with RSpec 1

Given

a file named "spec/spec_helper.rb" with:

require 'sinatra_app'
$LOAD_PATH.unshift(File.join(%w[ .. .. vendor rspec-1 lib ]))

require 'spec'
require 'spec/autorun'

require 'vcr'

VCR.config do |c|
  c.cassette_library_dir     = 'spec/cassettes'
  c.stub_with                  :fakeweb
end

Spec::Runner.configure do |c|
  c.extend VCR::RSpec::Macros
end

When

I run ruby -Ispec spec/vcr_example_spec.rb

Then

the output should contain "2 examples, 0 failures"

And

the file "spec/cassettes/VCR-RSpec_integration/without_an_explicit_cassette_name.yml" should contain "body: Hello"

And

the file "spec/cassettes/net_http_example.yml" should contain "body: Hello"

Last published over 7 years ago by myronmarston.

Usage with RSpec

Vcr settings